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Full text of "Pottsco light-weight aggregate ..."

€ *~ S l JAN 1 1 1935 



( POTTSCO ) 

Uaht- Weight A^grejdle 



Lig/if-JFeig/if 

low Gwf 

HigA Insulation Values 

High Acoustical Values 
Load-Bearing 

Fire Resistant 

Nailable 

Plaster and Stucco Base 

Easy Workability 



USE IT FOR 

Structural Concrete Precast Structural Slabs 

Fireproofing Precast Roof Slabs 

Load-Bearing Building Units Partition Units 

Bridge Decks Floor-fill 

Nailing Concrete Roof-fill 

and wherever else dead load saving is advantageous 



Exclusively Produced by 

The Pottsco Corporation 



Quality and Economy 



M. M. POTTS 



Phone State 1340 



Load Bearing 
Low Cost 



High Insulation 
Value 



High Acoustical 
Value 



( POTTSCO ) 

Light-Weight Aggregate 

Used in some of the largest and most modern Government Buildings 

The Pottsco Corporation 

One North La Salle Street 
Chicago 



Light Weight 

Fite Resistant 

Uniform and 
Easily Worked 

Direct Plaster 
&l Stucco Base 



THE BUILDING AND CONSTRUCTION INDUSTRY: 

This catalog has been compiled and issued in the hope that 
the wide variety of data herein contained will serve to acquaint the 
reader with the salient qualities and advantages of POTTSCO light- 
weight concrete. 

No attempt has been made to provide accurate specifications 
for specific work. Rather, this catalog serves as a general treat- 
ment of the product and its uses. However, this company will, through 
its general and district offices, provide detailed specifications for 
any project. 

We believe POTTSCO presents a product of QUALITY and ECONOMY 
to the building and construction industry — a combination that will 
be happily received by purchasers and users of light-weight concrete. 

An earnest effort will be made by all representatives of 
this corporation to serve the industry to the best of their ability. 

Respectfully, 

r&kfafi 




The following offices axe established under 
direct and competent supervision to quote prices, 
handle orders and generally service the sale and use 
of POTTSCO. 

Write the nearest office. 

General Office 

Chicago, Illinois - One North LaSalle Street 
Telephone - State 1340. President, H. H. Potts. 

New York City 

U40 Broadway - Telephone - Lackawanna 4-27U- 
A. tt. McMullin, New York Manager. 

Washing ton. D.C. 

510 Metropolitan Bank Building - Telephone - National 933' 
L. K. McDorman, District Manager. 

Newark. N. J. 

60 Park Place - Telephone - Market 2-4917 
J. Franklin, District Manager 

Plants are located at - Chicago, Illinois - 
Pittsburgh, Pennsylvania - Bethlehem, Pennsylvania. 



Are You Interested in Saving Money on 
Ycur Light-weight Concrete 

SOME REASONS FOR USING POTTSCO 



1. It is economical - the aggregate is low in cost offering contractor 
substantial savings. 

2. Use it for: 

Floor-fill 
Roof Slabs 
Nailing Concrete 
Fireproofing 
Back-up Tile 
Partition Tile 

3. It places perfectly and rapidly - still further reducing cost to 
contractor for concrete in place. 

4. POTTSCO floor-fill and similar concrete weighs from 70 to 75 pounds 
per cubic foot. Wall load-bearing POTTSCO concrete weighs approxi- 
mately 100 pounds per cubic foot, 

5. It meets Federal, State and City building codes and requirements. 

6. POTTSCO aggregate is entirely free from any elements which react 
unfavorably to steel, iron or metal - no possible corrosion. 

7. POTTSCO concrete is fire-proof. 

8. POTTSCO concrete has superior insulation and acoustical properties. 

9. High strength with minimum amount of cement is developed. 

10. POTTSCO aggregate can be handled equally well through Ready-Mix or 
Transit-Mix plants. 

11. Only one grade of aggregate to handle - no segregation - ready to 
use as unloaded from car. 

12. POTTSCO concrete has been used in large government and commercial 
projects. 

13. Producing plants, in conjunction with low freight rates, have been 
established so that POTTSCO may be used on any job in a very wide 
territorial area with BIG savings. 

14. Summed up POTTSCO aggregate produces a perfect cellular, porous, 
light-weight concrete at an attractive cost. 



THE POTTSCO CORPORATION 

One North LaSalle Street, 

Chicago 




OFFICE OF SUPERVISING ARCHITECT 

IH REPLYING QUOTE THE ABOV E SUB > q * * Yfi 

BCT, BUILDWG. AND THESE LETTERS OA" AXl 



MATERIAL 
TREASURY DEPARTMENT 

WASHINGTON 

July 1, 1933. 






The Pott sco Corporation, 
1 North LaSalle Street, 
Chicago, 111. 



Gentlemen: 

Referring to your letter of June 12th f the 
specifications in use by this office for light 
weight concrete fill in connection with the con- 
struction of buildings under the supervision of 
this office have been modified to permit the use 
of material of the type manufactured by your 
company . 

Respectfully, 
Jas. A» We^more 
Acting Supervising Architect. 






FROM SWEET'S 1934 ARCHITECTURAL CATALOG 



A373 



THE POTTSCO CORPORATION 

Exclusive Producer of "Pottsco" Lightweight Concrete Aggregate 
One North LaSalle Street, CHICAGO, ILL 

PLANTS IN CHICAGO AND PITTSBURGH 



"POTTSCO"— AN INERT, CELLULAR, POROUS, LIGHTWEIGHT AGGREGATE 



WEIGHING APPROXIMATELY 48 LBS. 



Structural Concrete. 
Fireproofing Steel Col- 
umns and Beams. 
Flour Fill. 
Roof and Floor Slabs. 



Uses 

Partition Units. 
Nailing Concrete. 
Back-up Units — Load 

Bearing. 
Special Products. 



( POTTSCO ) 

light-Weight Agjrajaia 

A Good Product That Com- 
bines the Most in Quality 
with the Most in Economy 



PER CUBIC FOOT 

Advantages 

Light Weight. 

Economical (first cost and in 

place). 
Low Absorption. 
High in Insulation Value. 
High in Fire Resistance. 
High Acoustical Properties. 
Excellent for Nailing. 



Good Plaster and 
Stucco Base. 

Smooth Finish and 
Texture. 

Excellent Bond. 

Low Capillary At- 
traction. 



Structural Concrete 

Where saving in weight is desirable for 
reinforced structural concrete, Pottsco 
may be used to decided advantage. 

Specifications furnished on request. 

Fireproofing Steel 

A saving in weight of from 40 to 60 
lbs. per ct- ft. can be made with Pottsco 
as compared with ordinary stone concrete. 
This feature offers the opportunity to 
effect great savings in cost of steel. 

Specifications furnished on request 





Structural Slabs 

Roof and floor slabs made from Pottsco, 
possess light weight and structural quali- 
ties. Pottsco precast slabs are manufac- 
tured and supplied by various reliable con- 
cerns. Full information furnished on re- 
quest. 

Building Units 

Approximately one hundred reliable 
concrete products manufacturers supply 
the trade with quality Pottsco building 
units for load-bearing back-up and parti- 
tion uses. They adequately meet the 
specifications of building codes and the 
American Concrete Institute. 



Section of Structural 
Roof Slab 




Pottsco Tile 



Left: 

Section of a 

Steel Column 

Fireproofed by 

Pottsco 

Concrete 



Floor Fill 

Pottsco floor fill averages 70 to 75 lbs. 
per cu. ft. with strength in excess of 500 
lbs. per sq. in. This strength can be pro- 
duced with a mix as lean as 1 :9. 




U. S. Post Office, Chicago, III. 

Graham. An demon, Piomt ft Whiti, Architect* 

John Giiffiths ft Son Co., Builders 

Porrtco was used throughout tors building as floor fill 



Samples — Technical and Engineering Data — Quotations — Promptly Furnished 



T)/^\HpnnQ /^/^V Lightweight Building 

1U1 lOLU BACK-UP UNITS 
Combine those rare merits of Economy and Quality 

THIS IS THE FIRST OF A SERIES OF FACT STATEMENTS THAT WILL BE 
PUBLISHED, IN AN EFFORT TO FAMILIARIZE ARCHITECTS, BUILDERS, 
CONTRACTORS AND OWNERS WITH AN OPPORTUNITY TO IMPROVE THE 
QUALITY OF CONSTRUCTION AND SIMULTANEOUSLY SAVB MONEY. 




POTTSCO Back-up Units are good for the following reasons : 



Low Cost 

Lightweight 

Low Absorption 

Low Capillary Attrmction 



High Insulation 

Fire Resistance 

Sound-deadening 

Sailing, Sawing and Boring 



Direct Plaster and Stucco ba>< 
Light, Clear Color 
Smooth Texture and Edges 



Exclusively Manufactured and Sold by- 



All of the following statements are made after exten- 
sive research and proof— Technical reports are on 
file and will be gladly furnished on request* 



-OW COST: By favorable arrangements » with the 
manufacturers of the lightweight aggregate from 
which POTTSCO Units are made, and through our 
own economical manufacturing facilities, we are able 
to supply POTTSCO lightweight Back-up Units at a 
cost, which will provide very substantial savings in the 
total cost of construction as compared with other 
materials or units adapted to similar construction, 
and in addition give you a product that possesses 
many other qualities, so essential to good construc- 
tion POTTSCO Units are made in many shapes 
and designs, so that we can meet your every require- 
ment. Let us tell you more about POTTSCO light- 
weight Units and give you a bid. 

JGHTWEJGHT: POTTSCO Units are from 35 to 
40% lighter in weight than ordinary concrete units. 
The savings in handling and laying on the job are 
very substantial — yet they possess a liberal margin of 
safety in the requirements of the general and local 
building codes, as to strength and compressive resist- 
ance. Although very light, they are very strong — 
and get stronger with age. POTTSCO Units are for 
load-bearing walls and make ideal partition walls 
as well. 

OW ABSORPTION: The absorption of POTTSCO 
Units is much lower than exists in competi- 
tive products. It is so low that in some cases 
these units have been approved by State In- 
dustrial Building Commissions for outside 
walls. We recommend them, however, pri- 
marily for back-up work. 

OW CAPILLARY ATTRACTION: Cap 

illary attraction (the action which takes 
place when the molecules of a liquid are 
attracted by a solid, causing the fluid to rise 
above its level about the sides of a con- 
taining vessel), although the absorption as 
above stated is low, occurs only in slight 
form. This creates a condition that is highly 
advantageous from the standpoint of elimi- 
nation of moisture and dampness and im- 
proved insulation. 

IGH INSULATION: The extremely light, po- 
rous character of the structure of POTTSCO 
Units, although sufficiently dense for low 
absorption and capillary attraction, gives 



a unit of especially high insulation qualities. These 
units are almost perfectly immune from the conduc- 
tivity of heat and cold. The structure is such that 
under normal conditions the transmission of heat 
and cold is negligible. Obviously, in buildings where 
insulation must be provided for, POTTSCO Units 
are especially adaptable, and their consideration 
well deserved. 

FIRE RESISTANCE: The ingredient aggregate, from 
which POTTSCO Units are made, has initially been 
fused at high temperature, so that the fire resistance 
of POTTSCO Units is especially high. POTTSCO 
Units have withstood successfully every fire test to 
which they have been submitted. Of all their 
qualities, none are superior to their fire resistance. 

SOUND-DEADENING: The same qualities that pro- 
vide for resistance of heat and cold operate to 
produce a unit that is effectively sound-proof — 
another worthy quality for Back-up Units. 

NAILING, SAWING AND BORING: These quali- 
ties, where they are required, are extremely con- 
ducive to economy in construction and are generally 
recognized as such. Ready proof of the superior 
qualities of POTTSCO Units is always available. 




POTTSCO Back-up Units used in Permanesque Homes, 
Pasadena Boulevard, Milwaukee, Wis, 
Furnished by The Economy Concrete Products Co. 
Wauwatosa, Wis. 



■M 



POTTSCO Units are easily nailed and the nails 
HOLD — a real advantage. 

DIRECT PLASTER AND STUCCO BASE: The 

smoothness and adhesion of POTTSCO Units make 
a perfect base for plaster and stucco. The smooth 
surface texture of the units contributes to saving 
plaster or stucco materials and accelerates the labor 
of application. The bonding or biting POTTSCO sur- 
face insures permanency. There can be no chemical 
reaction between the base, POTTSCO Units, and the 
plaster or stucco. Furring and lathing may be al- 
together avoided and that expense saved, if desired. 
Decorative, colored wall finishes may be applied 
with remarkable results direct to POTTSCO walls. 

LIGHT, CLEAR COLOR: The general white ot gray 
color of POTTSCO Units offers a pleasing wall, and 
can be left uncovered with an effect that is artistic. 

SMOOTH TEXTURE AND EDGES: The perfectness 
of shape, edges, and surface contributes to even 
joints and ease of handling and laying. Masons like 
to handle and lay POTTSCO Units. There is no 
patching of joints and corners. The entire wall sur- 
face is true. 

WE HAVE secured the exclusive manufacturing rights 
on POTTSCO Units in this territory. 

WE ARE prepared to furnish lightweight Back-up 
Units of almost any size, of the highest quality, 
at prices that will save you a great deal in your con- 
struction. 

WE ASK for the opportunity to talk with you and 
show you conclusively the advantages, the economy, 
and the high qualities of POTTSCO UNITS. 





A Specimen POTTSCO Tile 4"x8 xl6 
A good Back-up Tile and Partition Uni 



Kalamazoo, Michigan — De Ha an Apartments 
Another POTTSCO Back-up Job 



pottsco unit; 

Should Be Used F* 

Apartments 

Armories, Auditoriums, Rinks, S tad tut 

Banks 

Office Buildings 

Pubtic Buildings and Institutions 

Schools 

Churches 

Clubs and Lodge Buildings 

Garages 

Hotels and Restaurants 

Hospitals 

Warehouses 

Commercial and Industrial Buildings 

Residences 

Stores and Markets 

Theatres 



And wherever else there I 
need for a SUPERIO| 
BAG K-U P UNIT! 




Want To Save Money? 



Well— Here Is 

One Way To Do It— 



( POTTSCO ) 

Light- Weight Aggregate 

POTTSCO cu * s ^ our cos * * or a " l'9 n +- we 'gh+ 

concrete construction 




because of 



LOW COST per cubic yard 

LOW COST of handling 



LOW COST of mixing 

LOW COST of placing 



A Magnified Granule of POTTSCO 



LOWEST finished cost-- HIGHEST finished quality 



This circular is being mailed to outstanding 
contractors to inform them of the paramount 
features of POTTSCO — the one light-weight 
aggregate that will enable them to cut costs 

Other contractors are realizing 
this saving so can you. 









4y\<y e^ *y ^ 



& ■ -s>> ««* 



m 

POTTSCO Light- Weight Concrete Ajjt G 



has been used successfully for the past five years 
in all types of building construction » » » 




NEW U. S. POST OFFICE 

Canal, Van Buren and Harrison Streets 

CHICAGO 

Largest Post Office Building 
in the World 






Graham, Anderson, Probst & White 
Architects 

John Griffith & Son Company 
Builders 



III 

POTTSCO 



THE NEW CHICAGO POST OFFICE used POTTSCO for 
all light-weight floor-fill concrete and it gave a first-class job. 




is Economical: 

Only one grade of aggregate to handle - - use 
it just as it is unloaded from cars - - 

POTTSCO Makes Good Concrete: 

Hard - - cellular - - porous - - light - weight 

(75 pounds per cubic foot up) 

POTTSCO Cuts Labor Costs: 

Perfect workability - - perfect bond ; _ _ nQ 
harshness in placing 

is Approved By: 

U. S. Government, City and State Building Codes 
«THE POTTSCO CORPORATION 




POTTSCO 



« « 



And 
Jays 



, - 






i 



Nor 







Combines These GOOD QUALITIES 

Economy 

Light weight 

Superior Insulation 

High compressive strength 
Fire-resistant 

Chemically inert (no corrosion) 

Places and handles cheaply and well 
Absorbs sound 
Excellent bond 

THE NEW U. S. POST OFFICE AT 

CINCINNATI, OHIO, 

was completed with POTTSCO 

as floor-fill throughout 



Consolidated Engineering Co., Builders 
J. E. Smith Co., Concrete Contractor 



And here is what the contractor 
says about the job — 





J. E. SMITH COMPANY 




BVILDBMi 

1206 Sbiiman Av*muu 




CINCINNATI 

IiuNm weit Bin 




.'un« 1, 
19 3 3. 


u. 

1 


foil* Corporation 
korlh U fell* St. 

Chicago, ill. 



£*w Mr. jotiti 

*nar> *a fora&ll7 :loj«d tha iootract #ith 
furnlihirur "lottaco" for tha Naw Clo;lno»tl *ost (-fflie, .sj 
tlatad tn«i Id Ulovlof 1600 lbs of totta:o to the ouoic yard, 
that this louu lb». "ouU yiald from tan to flftaen parcant 
aura ttLan ^n MlaaJ mfele yard of tatarla.1. 

At tr.a tiaa,»» iu« rn»r a*eptlcal of >our »t*ta- 
tad line* *a h»va coaplatad oar joo, ualn# ajj^r 3»tm*tal7 
2^00 >d». 9f yo»r oialarlal.** find that tn« jlald It actually 
Id. j-r-tater , 

*a Jx»u m littla difficulty at tha atari oj u»ir*r 
too iu:h aatar and au«a?aat toal you caution your futura our:ru.aari 
of ioit»;o to oa caraful aoout tnu watar contact. *a UKa j?jt 
malarial aery aall, handlaa aery nloaly and ■• ha»a flcon Ifca* 
bare p*aiad a w«ry r Wrld G:»erQaent loa^actloo. 



.•>r> truly ysors. 





AskU; 


>forT( 


3st Data on POTTSCO 




Proving These Points 


Insulation 


Value 


.30 BTU 


Compressive Strer 


gth From 400 lbs. to 2000 lbs. 
Per Square Inch 
(depending on the mix) 


Acoustical Value 


45.7 Units Avge. Reduction 


Lightweight 


From 75 lbs. Per Cubic Foot Up 



NORTH LA SALLE STREET, CHICAGO »» 



» 



r 



( POTTSCO ) 

Ught-WeKjht Acjcrreqaie 



A GOOD PRODUCT - - AN ECONOMICAL PRODUCT 
FOR MAJOR CONCRETE CONSTRUCTION 



POTTSCO, a standard, recognized and approved product, is sold 
exclusively by THE POTTSCO CORPORATION which makes 
a genuine effort to give genuine service 



» 



» 



» 



III 

POTTSCO'S BIG ADVANTAGES TO YOU: 

Makes A Better Job — 

Assures A Winning Bid — 
And Saves You Money. 



■■ 



Samples — Technical and Engineering Data — Quotations 
Promptly Furnished 

Ask us for Delivered Price 
on any job you have or any 
job you are bidding on » » » 



The Pottsco Corporation 

One North La Salle Street, Chicago 
Telephone: Stote 1340 



INSULATION 

Tests and use have definitely proved that POTTSCO concrete 
is the highest in quality from the standpoint of insulation of 
any structural concrete thus far developed. 

POTTSCO, therefore, deserves consideration in any type of 
building construction where insulation against heat and cold 
is needed or important. 



C i Cechardt 



fe»roh 26, 1929 



H. I. Potta Cowpeny 

228 north L>3*1 U Street 

Chicago. Illinois. 



We eubw.lt herewith the results of teats »hlch we have 
conducted to determine the rata of beat flow through your Tottaco- 
bulldog tile). 

f*gHo«l ||eaaureaente 

Length, Inches 15-7/8- 

Belght, Inohes 7-6/8- 

T/UQ«nesa, Inches 8 

Density; pound • par ou.ft. of volume 66 
Hollow 3paoe; percent of total voloaw 42,2 
Density of Aggregate; pounds par on, ft, 112. 

fleet Conduct t THj Tt ,f 

Id oonduetlog thla teat ** have uaed the flat plate method 
which gives the Internal aooduotltlty of 'the attrUl, surftoe to 
surfsee. In the data below we have expreeeed thla eoodaotlTlt y In 
a.t.u.s per hour per eamere foot of wall surface pmr degree 'ahr. of 
temperature difference between toe surface* of the wall for the 8 
kooh thickness. 

The temperatures on the two a Idea of the tile were aeasured 
with oopper - edvanoe thermocouples attached directly to the aurfaoe 
of the ttle. You wl.il note that the wan aide wee aelntalned at a 
tempers tore of 100 degrees ?ehr, and the cold side at 45 degrees i»hr. 
This «1mi a t emparature difference across the tile of S3 degrees Tahr. 
and a mean or base tampsretore of 72.6 degree a ?ahr. The results are 
ea fellowe. 

Temp era turee - Deg. fwhr. Beet ConduotWlty 

germ 31de Cold Side Dlfferenoe yen B.t.o.a per Hoar 



Teatlng Engineer 
J. C. Peebles. 



aeapeot fully • abas It ted. 



C *B H 



^.° nA *OT 



* li *i»* fit 1 **- —JE** ° e a.c^ h 

te r «pJv » rj ls. 

di -ct a ;r "•**• «„ n °: w - -'i« an •'•«« co „, . 






»Z^$ll.T'.'.'A .'1"- 



Inr. r 
tArou, 



B*4j 



:n*« 

Propc rt 



'•cent 



1 eo *.r, 






5 -1 * •*. 



lc * 'Pe'co 



•*»toto 



*»jdll 






"-h.^- 












■fWat. 



When you 



use 



POTTSCO 



You get 
real 



INSULATION 



This is the second of a series of educational papers on POTTSCO 
light-weight concrete building back-up units, intended to acquaint 
Architects, Builders, Contractors and Owners with an all-quality 

product. 



i 




A representative MILWAUKEE, WISCONSIN K« m ^ 

cu,, wi»^uiMMIV t nome^a type where quality is demanded. 

POTTSCO back-up units are used throughout. 



1 



~>* 



The following three pages tell why discriminating Architects 
and BuAders use POTTSCO LIGHT-WEIGHT BACK-UP UMTS 



7 



= Exclusively Manufactured and Sold by-. 



G F Gerhard r 

M* « hami ai, K\r.iMi,u 



March 2dth, 1929. 



r.pany 

iTvvt 

i, IlUnoia 



Ke submit herewith the results of tests which w« huve conducted to de- 
!it flow through your "Pottsco" building tile. 



Physical Bcaauromonta 



15-7/0" 
7-&/0" 



. I n, Inches 
ghf , lnrhes 

T, pound* per cu.ft, of volume 65 

nnt of total volume 42. Z 
Density of Aggregate; pounds per cu.ft. 112. 

Hoat Conluctlvlty Teat 

m conducting this test we have used the flnt plate ruuthod which 

rnal conductivity of the material, surface to surface. In the data 
have expressed thla conductivity In B.t.u.s p>;r h >ur per square Toot of ~ 
■all surfaco per degree Fahr. of temperature difference betwoon tne surfaces of 
the wall for the 8 Inch thickness, 

-'ires on the two Bides', or the tllo were measured with cop- 

. wance thermocouple attached directly to the surface of the tile. You 

■ 111 note that the v.arm side was maintained at a temperature of 100 degrees Fahr. 

->ld »i h %i |8 I groes Fahr. This gives a tomporature dlfforonce across 

Ml ' '" • Fahr. and a mean or base tomporature of 72.5 degrees Fahr. 

IU1U are as follows: 

Temperatures - Dog. Fahr. Heat Conductivity 

Warm Side Cold ftrtg Dlfforonce Moan B.t.u.s. per Hour 



Respectfully submU* 



v^(- 



=Kn49t 



=*?*/> 



G. P. Gebhardt, Mechanical Engineer, ARMOUR IN- 
STITUTE OF TECHNOLOGY, submits this report after 
regulation insulation test on standard 8x8x16" 
POTTSCO light-weight blocks. 

This laboratory, recognized for its extensive and 
thorough research work in the field of INSULATION, 
was purposely selected to make these tests on 
POTTSCO units, because it is to this laboratory chiefly 
that insulation products are submitted. 



<u*©t- 



=*r^9t= 



=*5*w> 



The POTTSCO aggregate from which POTTSCO units are made is so high in INSULATION that it can be shipped in coal or 
gondola cars during the severest part of the winter, wet and full of moisture and only a thin crust around (he sides, bottom 
and top of car will form. THE COLD WILL NOT PENETRATE A CAR LOAD TO EVEN THE POINT OF FREEZING. 

Is it any wonder then that POTTSCO units are high in INSULATION? 



e0MP*M30M £f MEAT 1033 TRRODCH W*X1.3 Of H.MJU3 1UTIHU1.3 




Graphically expressed, the relation of 
INSULATION efficiency of POTTSCO units 
as shown by above report to other struc- 
tural units, based on general published re- 
ports, reveals an interesting comparison. 

POTTSCO walls are INSULATED 
walls. 



^ 



A Magnified Granule of POTTSCO 




The fine, porous, granular, cellular structure of POTTSCO 
aggregate when combined with cement, forms a hard mass of 
sponges, filled with minute air spaces and sealed over with 
cement, which kills the transmission of heat and cold. 



The physical characteristics of this combination of cement 
and POTTSCO sets up an impervious barrier to the atmospheric 
elements and accomplishes the ideals of INSULATION. 



HERE IS JUST A PLAIN, PRACTICAL PROOF 

Vou can lay up a plain wall of POTTSCO units and apply intense heat to one side. Heat it to from 1500 to 2000 degrees F. 
Bring it lo a red hot heat. Keep the heat applied for a long time. (These tests have been run from 4 to 100 hours.) Then 
place your the opposite side of the wall and keep it there as long as you like. You will feel no more than a littfe 

warmth. 

With what other structural building unit can this test be made? 

If you tan have one side of the wall, say 1500 degrees and the opposite side say 150 degrees— a reduction of 1350 degrees in 
say an 8-inch wall, what chance has the cold at say 20 degrees below zero to penetrate the wall? NO INSULATION MATERIAL 
IS BE! ILK Hi \\ ITS ABILITY TO RESIST THE TRANSMISSION OF HEAT AND COLD. 



UNDERWOOD HOTEL, WAUWATOSA, WIS, 




Another reprc* >TTSCO back-up units 

used throughout . 

—-Architect A. L. Seidenseliwarlz, MilUHluli 



— 1 



WOMKWT W K"T< T i o«4l'A.W. EM 



Chicago, Illinois 
August 51, 1928. 



H. II. Pott* Company, 

f<ulldera Building, 
Chic**©, Illinois. 



Th* following Is" result or hc«t test, nuihorlsci 
by your latter of August 25th, on two~f}x8xl6" Building 
Mocks, which tcr« delivered to our laboratory by your rop- 
r-sont«tlvo. 

The test performed was In the nature of » pro- 
llsil nary observation, and no absolute temperature dotcnnln- 
•tlons were made, 

Blocks under test were surrounded to a certain ox- 
tent i>y other blocks In order to confine tho ho*t as much as 
possible and wore thon subjected to an air blast gas flam 
for four hours. 

«-es In immediate contact with tnc flono cajno 
to a bright chwrry red which Is generally considered Indic- 
ative of a t»»p*reture of about 1SOO dogrces FahrciAolt. 

h» other face of the block was then not too hoc to bo touch- 
ed tn tho hand. 

While under 61mm n lit Ions the bionics wore 
I with cold water. So cracking or spelling eff of the 
blocks was apparent ["row the heat or from tne cooling by 
water. 



-nm 



Respectfully submitted, 
'tfTWU^ ROBERT W. HUNT COMPAKV. 



rf^H- 



1NSULATION is basic. 

INSULATION is the primary object of all building. 

Housing has never meant more than an idea to separate that which needs pro- 
tection, from the outside world. 

The Esquimo's igloo, the gypsic's tent, the pioneer sod hut of the western plains, 
and on and up to and inclunding today's ultra-modern, monumental struc- 
tures, are examples of man's attempt to INSULATE from the climates and 
elements of the Great Outdoors. 

Because structural materials have not provided the full requirements of INSU- 
LATION, special insulating materials have been developed, and worthy as 
they are for their purpose, their use constitute an imposing added burden 
financially in the total cost of construction. 



-Hr»- 



= 1*3**- 



WE ARE MANUFACTURING AND OFFERING POTTSCO LIGHT-WEIGHT BACK-UP UNITS FOR ALL TYPES OF 

CONSTRUCTION IN THIS TERRITORY, BECAUSE WE CAN GIVE YOU STRUCTURAL WALLS 

AND AT THE SAME TIME INSULATION AT ONE COST, 



Some other advantages of POTTSCO 
back-up units 

Light-weight and easy to lay. 
Extremely sound-proof. 
Direct nailing or boring. 

Plaster or stucco direct. Certain char- 
acteristics make these units especi- 
ally an ideal plaster and stucco base. 

Fire-proof. 

Structural strength (Get stronger with 
age). 

Mo contraction or expansion. 
Very low absorbtiou. 




"si Picture of a Story' 



Use POTTSCO units for 

Apartments. 

Armories, Auditoriums, Rinks, Stadiums, 

Hanks 

Office Buildings. 

Public Buildings and Institutions. 

Schools. 

Churches. 

Clubs and Lodge Buildings. 

Garages 

Hotels and Restaurants. 

Hospitals. 

Warehouses. 

Commercial and Industrial Buildings. 

Residences. 

Stores and Markets. 

lit cat res. 

AKU WHEREVER ELSE THERE IS 
NEED LOR A SUPERIOR BACK- 
UP UNIT. 



WE ARE THE SOLE MANUFACTURERS OF POTTSCO BACK-UP UNITS IN THIS TERRITORY AND ARE ATTEMPT- 
ING TO RENDER A REAL SERVICE BY PROVIDING A SUPERIOR QUALITY PRODUCT AT COSTS WHICH MATERIALLY 
LESSEN THE TOTAL COST OF CONSTRUCTION. POTTSCO UNITS ARE MADE IN NINE STATES. 



A TELEPHONE CALL, A CARD, A LETTER, will bring a representative to see you at your convenience, who will give 
you all the information you wish. We extend a cordial invitation to visit- our plant and office and discuss this remarkable 
/'induct and its uses. 



I 



COMPRESSIVE AND ABSORPTION TESTS 

The following reproductions of tests are representative of tiie many that have been made, 
which establish conclusively that POTTSCO meets all the standard building code requirements 
as to strength and absorption. 

Copies of additional reports will be furnished on request. 




PITTSBURGH TESTING LABORATORY 



mTTMUMOM. *A, 



Ha H. Potto Co. 
Chicago, Illinois 



REPORT OF T«6T OF 3 



MMTOin ■*• 5797 

■ «. Ch 3661 
^ - 0304 



•*" 10-27-28 
concrete Building Blocks 



AnnbuBter. Aurora, Illinois 
COMPRESSION TKST 



•.- Actual ""£t^"* *•!•#* t*~ 



^ Date **. 

X^h»*s*.M Made °— 



1 16.50X7.75 120.14" 35.50 84000 



Ci-uahed Vertical 



9-15-28 42 



PITTSBURGH TESTING LABORATORY. 
h . G. E. Johnston 



INDUSTRIAL COMMISSION 

OF 

WISCONSIN 



STATE CAPITOL ANNEX 

MAOiaoN 




August 20. 1929 



Alsted Mf*. Company, 
Truesdell, Wisconsin 



We have a test report on teat of your 8 I 8 i 16 inch 
three cell granulated elag oonorete block made on September 
26th, 1928 and on which the compression teat was made on 
November 1st, 1928. 

The blocks were tested on the 8 x 16 lnoh face with 
cells vertical. The blooks ware marked AJICO atenoillad on 
each bloak. 

According to the results of the teat your bloeka satis- 
factorily passed the test required by the building oode and 
are, therefore, acceptable for use in load-bearing and outside 
walls in publio buildings and plaoes of employment in the state 
of Wisconsin. 

Tours very truly, 
IITWSTRIAI COWCTSSIOlf 



JZudoa&fa^ 



Callen 
Building Inspeotor. 



i 



The university of WisoonBln 

College of Engineering Departmsnt of Mechanlos 

Laboratory for Testing sate rials 

April 6. 199. 

Besults of Freezing ana Thawing Tests on Pottsoo Concrete Building Blocks, 
■ate for the leonoay Concrete Froduota Co., Wauwatoaa, ffieoonaln. 

The propose of these testa was to determine the effect of repeated 
fret zing and thawing on the strength and absorption of Concrete Building 
Bloeks made with Pott seo aggregate aad Portland cement, and also to note 
the loaa In weight and the spelling or other corf ace deterioration due 
to the freezing and thawing. 

Twenty blocks, all 8x8xl6-ln., S call, were received at the 
laboratory on January 10, 1929, all of the blocks having been sealed 
by Mr. C. 1. Porter, for the Wisconsin Concrete Products Association. 
The card accompanying the blocks states that they were aade on Deeescer 
T, 1928; aggregate, Pottsoo, all through l/2-in. screen; 1:9 nix; Ideal 
El ou. ft. batch mixer; 8 admits s dry, 3 minutes wet; Anchor stripper; 
cured 18 hours In eteaa. All blocks were stencilled on the end with 
the aanufaeturer's Berk, an Z in a hexagon. 

Fifteen of the blocks were used in these tests, fire of then being 
subjected to 100 reversals of freezing and thawing and then teetad for 
strength, absorption and loss in weight, fire of thea being tested at 
the beginning of the run for strength and absorption in the regular 
manner, and ths other fire being bald In the laboratory until the freez- 
ing and thawing run wae completed, when they also were tested far 
strength and absorption In the regular aanner. The expectation was 
that this would give an indication of the noraal increase in strength 
of the blocks under ordinary conditions during the tias required to 
complete the freezing and thawing on the fire blocks being tested in 
that way. 

The bleaks for each test were picks d at random as follows. 
The twenty blocks were arranged in order of seal numbers and beginning 
at the lowest number the first, fifth, ninth, thirteenth and seven- 
teenth were aalected for freezing and thawing and numbered 1 to 8, 
inclusive. Irery fourth block beginning with the second waa selected 
for testing at the beginning of the freezing run, these blocks being 
numbered 6 to 10, inclusive. Kvsry fourth block beginning with the 
third was selected for testing at ths and of the freezing run, these 
blocks being cumbered 11 to 15, inclusive. 

The attached regular printed report blanks, sheets 1, B and 8, 
give the raaulta of the regular strength, to Ids and absorption testa 
on ths three sets of blocks, the absorption data given *»•««/•*.. 
blocks 1 to 5 being for the blocks before the freezing test was started. 
Absorption on these bloeke after the freezing test was eoapleted was 
also determined and Is given later on In this part of the report. 

°* *te«!?3 r . «tort on block, tested before freezing begam. 

I J I a m subjected to freezing and thawing. 



Koonomy Cone. prod. Co., Freezing Test, #2. 

Actual freezing aaa begun on January 1?, 1929 and was completed 
on latroh £6, 1989. When possible the freezing was accomplished by 
placing the blocks outside the laboratory, but when ths outside 
temperature was not sufficiently low the blocks were frozen In the 
laboratory freezer. 100 oomplate reTersale of freezing and thawing 
were made, the thawing being accomplished by placing the frozen 
blocks in water and leaving thea in this water until thoroughly thawed 
out. The bloeks were saturated with water before being frozen for the 
first time, being In water for 72 hours, and were always thereafter placed 
In the freezing atmosphere immediately upon being removed from the water 
in which they had been thawed. The water in which the blocks were thaw- 
ed out was heated somewhat by running 11 vb steam into it, so as to 
accelerate the thawing, but no attempt was made to raise this water very 
much abovs the regular laboratory temperature of about 70°7. 

In order to determine whether the blocks were completely frozen 
or thawed as the case might be a dummy specimen of the same material was 
used, in which a hole had been drilled to a point in the middle of the 
thickest web, half way from the top to the bottom of the block. This 
hole was partly filled with refrigerator nnohine oil having a low 
freezing point and a thermometer of the Immersion type placed therein, 
the opening to the hole being tightly corked. 

Readings ware taken of temperatures a a ollows, the average of the 
100 readings being given in each case: 

Temp, of freemer at beginning of freezing, Av. 14° F. 

• - 9 nd ■ 13 

■ dummy ■ w • a 17 

■ ■ water " beginning " tnewing, 76 

• W ■ m al m 94 

• dummy a m m s gi 

Toward a the middle of the freezing run block 2 begun to spall on 
the bo t to a faee, as aade, and this spelling progressed until nearly ell 
of thia face had crumbled away to a depth of about one lnoh, after 
ahioh this spelling practically ceased, there being very little deter- 
ioration during the last fifteen or twenty reversals. This block had 
a aouble oross (#) scratched on one and and the manufacturer states that 
this was one of 1 lot of rejected blocks which bad been included in this 
lot of blocks by mistake. In addition to the bad epalling of the bottom 
of this block there was considerable surface deterioration on the sides 
and ends to a maximum depth of about l/d-in. , the total area so affected 
being about 100 square lnchea on the aides and ends. In order to make a 
strength test of this block it was necessary to build up the damaged 
faoe with a 1:1 Luani te mortar, and it will be noted that this block waa 
the only one tested which was below the 700 pounds per square inch re- 
quired by the Code, either before or after freezing, and also that It 
was the only block having a material loss in weight after freezing. 

Of the other four blocks that were subjected to the freezing test, 
there was some surface deterioration to s depth of only about 1/16-in. 
or lees, and this did not show up at all until about 90 reversals had 
been made. The area affected was approximately 25 to 30 square inches 
for block 3, 50 equare lnchea for block 1, and 75 aquare Indus for 
block 4 and 5, moat of it being on the ends or the sides near the ends. 




Eoonomy Cone. Prod. Co., Freezing Test. 



#3. 



The data for absorption and loss in weight of blocks 1 to 5 after 
freezing la as follows: 

Block Weights after freezing 

Dry let 

lb. lb. 



33.7 
30.0 
34.1 
32.6 
33.8 



39.9 
36.1 
40,1 
39.2 
40.0 



% Absorption 


Loss 


In dry weight 




due 


to 


freezing 




lb. 




% 


18.4 


0.6 




1.8 


20.3 


2.9 




8.8 


17.6 


0.1 




0.3 


20.3 


0.6 




1.8 


18.3 


0.3 




0.9 



It will be noted from the strength tests that the strength of the 
five blocks 11 to 15 which were stored In the laboratory and tested at 
end of the freezing period was less than the strength of the blocks 
6 to 10 which were tested at the beginning of the freezing period. 
While blocks cured in steam gain in strength only very slightly with 
age there should be no retrogression In strength. All of the blocks 
were tested on the same machine and in the same manner. An examination 
of the dry weights of the various blocks indloates that the strength 
varies with the dry weight whioh shows the value of good tamping and 
may account for the strength difference mentioned. Bloeks 1 to 5 
which went through the freezing test had an average strength of 1064 
pounds per square inch and an average dry weight of 34.0 pounds, 
defective block 2 being omitted in each case; blocks 6 to 10 whieh 
were tested at the beginning of the freezing run had en average strength 
of 1082 pounds per aqimre inch and an average dry weight of 34.9 pounds; 
blocks 11 to 15 whioh were tested at the end of the freezing run had en 
average strength of 973 pounds per square lnoh and an average dry weight 
of 34.0 pounds. (Comparisons should be on the basle of dry weights as 
the weights given under part B of the reports were not all gotten at 
the same time.) Certainly In the ease of blocks 1, 3, 4 and 5 there Is 
no indication that the repeated freezing and thawing had any bad effect 
on the strength. 

Detailed data of the dates and hours of each reversal, with the 
individual temperatures, etc., together with a sketch of eaoh block 
showing the extent of any surface deterioration, are on film in thia 
office. 




Paul T. lor ton, Jr. 
Asst. Prof, of anohslnloB, 
62A Engineering Building. 



THE UNIVEBSmr OF WISCONSIN 

0GMBDH1 - MTA«T1M*T Of UMMAMKB ShSSt 1. 

L*bar*t«9~T fv T*»tfcM MfctM^tJto 

t „ T-ta , ^tt— Or "- l*** 1 * ^ "**»■ to^Tn, e^^ r .in.. i ..3„oeUe-_- 

fa-pfa. .fa- fa o fc .«..J!«i«.«*.JKi^- I n— «» 

farfa ■ farfat ..)■?** — - - """" 

M m iua. . JLJjB.AAMnA^.JllfBCtlJltat. .fta..s»A» - 

i/e-ln. noTOsni 1:9 nix: lassl 81 ou.ft. bstoa «lx«. 3 ninut.s dry. 
8 nlnutts Mt; An»n.or •tripper; euroo. 18 houri In ittifc 

fhnoo fl»s block. ploksc *t mndon fron lot Mt for fnnlns tssti, and 
Watoa it Um frsszlntf tost *»t bs«un on othsr blook*. 



■C7.4 




(1) COHIUMON 

.BsUrla..AMfl f ..Mll* TJBttl«kl 

i J I 

vm. ' iimt 

37*1 BUI 

.7*7 I. .7 

.8*0.118.. 7.8 8.0*11*75 
UtrfT UB^O. ... 

lii.aan.. ui^Tao 

11ML 1060 



t5..«tUC.0ftr... 



12TO 

£3 

jum* 

1080 



.8*0*15*7.8.- 

.126.0... 

lZfi^fiOO... 

1000 



ife» «o«pl*t* *n«nx;. Afi 

(O VOIDS 1 



6.0 



-t-- 



p. •i«-w-l*r ftsA 
Hfltit (14 .01 - 
fe4 Af»rsaalana J.3«*.» ( 8* \i . 



DATA 
.....A . . 
1»*0 

4.fjrtifloip A 



„...» 

1*8. Q 



W**M ito i»|y*« 



I 



JML 



Ww^TTVCot W lb./Wu.ft. Absorption lltlt tW 
,u*w »__ *«*rj 13. tsifL J 



. «. «•—•» «f .1 MM ■ 



—- - ->- -Kauu... •*«*>- *"- LSbSBSS* " - 

»•- fiTO blook. a ,-fa** .* _ . " *" **••■• 



1 ^"i^s±ft f M — P-S pi-^i*— • 



•***i. 



t*t: 






*«* or *«»>, , <C> VOIDS 1 

••*- «-. m >»j _i~ ism «~ r - 1 * 

I cu ~- ■ — -f*'-**»*lii.«a4M; i_ 

A -' l,k ' -J— j«ji -ITT "■+ •■»-— 1 



1A 



the UNrvsssmr of Wisconsin 



Shost 8, 



nrtor **~nl H *WVJW»« I t T ar r olT?« «■ »«K»t m nb.arjtio 




- ^*i. » , 

JU T B , ar H taut 9 nr. lAl t »- -i™.J 1I)W *io 

^TZJX? ZnV' bmm — ^jr* 1 tox *•- 

^**-0 1M^ 



iJW.D 



Q * n " 8»ljd^ (J4.QJ »^ * KJ * m » -»■»-■ <**- 

*• «V.MUa J.nsM.I iz^, «... _ i *■ ■• •■• 



=-.■= S 2! -- 2 





ppvr^r rZ-'-»p: 



ROBERT W. HITTT COMPANY. ENGDtZKKS 
cmicaoo m-rsBV-noji mTau 

ANALYSIS OF "POTTSCO" 

Chicago, Illinois 
November 10, 1930 
r,«** 23932-2 w* B-20110 
C-490-A 

H.H. Potts Company 
Builders Building 
Chicago, Illinois 

Gentlemen: 

hv f ho » » A ^ple Barked "Pottsco" was submitted 
by the H.H. Potts Company to our laboratory for 
chemical analysis: 

Analysis Water Soluble 

% Total Solids 1.340 

% Chlorine Traee 

% Sulphate Trace 

% Sulphides Trace 

Reaction Neutral 

Analysis of white SamnTP. 

I ? 1U "*;: ••••• 34,00 

% Iron Oxide 4.95 

% Aluminum Oxide .' .* 14^05 

* Calcium Oxide 38 63 

* S«inP^i U n P ^ de - 2 '- 42 (Calculated fro* 

X Magnesium Oxide... 3.24 Sulphide Sulphur) 

% Loss on Ignition Nil p ; 

% Sulphuric Anhydride 1.42 

The water soluble analysis shows a very 
small percentage of soluble matter. The low percentage 
of water soluble as well as the neutral reaction 
indicates that the sample submitted would not cause 

^nt^J ^ T!! en V%* as an a 8« re gate for concrete in 
contact with reinforced steel. 

Hot^^™*? Piece af polished steel showed no ooticecble 
deterioration on being placed in boiling water con- 
taining portions of pulverized "Pottsco". 

Respectfully submitted: 
ROBERT W. HUNT COMPANY 

Plummer Technical Director, 

Chemical k Metallurgical 
Engineering 






PITTSBURGH TESTING LABORATORY 

PITTSBURGH. PENNA 



It mo Ch-5823 



REPORT 

COKPRBSSIOI AHD PTRB TB3T3 OP P0TT3C0 COSCRETB 



L**od*Towr no 163521 
rauBM* 6774.5 
August 25, 1933. 



PITTSBURGH TESTING LABORATORY 

PITTSBURGH. PENNA 



uioMTour no 165521 
fili no 6774,3 



THE P0TT3C0 



CORPORATION 1 SORT* LA SALLE STRZST, CHICAGO, ILLUOIS 



MDE NO. 2 



REPORT 



1-6 By Voluma 



PURPOSE OP TESTS 

Tha forego lag types of test wars conducted for 

£3T»p of Pottaeo concrete In varying proportion, of 
Pott a co material. 

Tha fire testa were made for determining the 
protection which Pottaeo concrete. In the same *«TLug 
£oanti, would afford atructural stssl ahape. embedded 
lo Berne. 



PESCRIPTIOB QP TEST SPBCIMgSS 



COMPRBSSIOS TEST SPECIMEMS 

Por the compression teat 6* % 12" specimens were 
eaat In the preaence of a Pittsburgh Testing Laboratory 
inspector, three different mixe. being .el acted and two 
cylinders of e.ch mix prepared for teat In the usual recog- 
nized manner covering this type of teat epecimen. 

There were three different mixes uaed in the 
preparation of the cylinders, ae follows :- 

mi SO. 1 - - - 1-6 By Volume 

Cement -One Bag (94 Pounds) 

Pottaeo aggregate - 8 Cu. Pt. let 48 

pounda per Cu, Pt.J 
Water added - 7 Gallons per bag 



Cement-1.16 Bag. (109 **«;•> ( t 48 

Pottaeo Aggregate - ^f^^? 

Water Added - 7.™ Gallons per bag 

MIX HO. 3 1-4 By Volua* 

Cement-One Bag (94 Pound.) 

Pottaeo Aggregate - 4 Cu. Pt. (at 48 

pounds per Cu. Pt.) 
Water added - 5 gallons per bag 

A sieve analysis of the Pottaeo aggregate used in 
each of the foregoing mixes is aa shown belowt- 



3/6- 


0.0 


Percent 


Retained 


lo. 4 


1.5 






Ho. a 


7.6 






lo. 14 


37.0 






So. 20 


60,0 






Ho. 26 


78.0 






Ho. 46 


94.0 






Ho. 80 


96.0 






Ho. 100 


97.0 




. 


Ho. 100 


3.0 


Percent Passing 



PIKE TEST SPBCDCEHS 



-^.J*~ 



PITTSBURGH TESTING LABORATORY 

PITTSBURGH. PENNA 



o«o.« no Ch-6823 

| NO 



USONtlORV NO 165621 

r.uiNo 6774.3 



The fire teat apeclmons consisted of three block, 
of Pottaeo concrete each 10" x 10" x 14* on a side and rep- 
resenting the three different mixes aa uaed in the prepare- 
tion ofthe 6* x 12 1 cylinders tested for compression strength 
These fire test specimens were cast around a 6* x 6 E" colum 

. . . n- m- «_*.*. m„A *~.y*mAAmA n»rHr«nv in the 



jlumn 






These fire test specimens were cmi wouhu • o * « 
weighing 21 pounds per foot and embedded vertically In the 
center of the block, with respect to the long axis, the be^ 
extending to within 2" of the upper and lower surface of the 
block and the ends of the steel beam protected by the concrete 
which was brought flush with the top and bottom face of the 
block. 



PITTSBURGH TESTING LABORATORY 

PITTSBURGH. PENNA 



LAeoftATOKr no 163621 
ruiNo 6774.3 



The compression and fire teat apeclmens were t 
to our laboratory where they were allowed to cure In open air 
at room temperature for a period of 28 days. At the expiration 
of the 2e day period the blocke ware thoroughly dried out in a 
heating hood until they had reached a conatant weight after 
which period they were lasaedlately tested. 



COMPRESSIOS 3TKES0TB TEST 

Compresalon strength teata were made on each aet of 
oyllnders submitted, one of each mix beln? teated in the usual 
manner by crushing at the rate of .06* pel -.lnute and tha 
ultimate strength determined. The mate to aach cylinder waa 
teeted for modulua of elasticity aa wsll as ultimate compres- 
alon strength. It is mentioned tha'- . crushing test waa 
made cm the same day as the companion fire teat specimen waa 
taated, ome days time being required for each fire teat, as 

described. Reaulta of compresalon atrength testa are 
.c»eai- 

OflefMtBSSIOS TEST OP 6* 1 12* CTLISDHRS USTJO POTTSCO AGGREGATE 



REPORT 



MODPUJS OP ELASTICITY OP COHCRBTE 



CTXTJEm CRUfflUG ID AD 



LA 
IB* 






CRTJ9BISG LOAD 
LBS. PER SQ.IS. 



1170 
1147 



AGE 
DATS 



42 

42 



LOAD HO. 1 
LMR. PER SQ.IS. 


SO. 2 


SO. 5 


260 720,000 
600 700,000 
760 656,000 

1000 626,000 

1260 

1600 


990,000 
976,000 
940,000 
860,000 
760,000 


1,260,000 
1,250,000 
1,260,000 
1,240,000 
1,170,000 
1,060,000 


METHOD OP C01DDCTIHQ 


FIRE TEST 





1166 - Average 

1676 43 

1674 43 

1626 - Averag* 

1804 44 

aVJM 44 

2102 - Average 

a Theee cyl laden used for the determiaetlcm 
of Module 



d^.wOO 



• ,ooc 
n .tot 



Bach of the fire test specimens were, In turn, tested 
for fire resistance by pladlng them in a gaa fired furnace and 
heating specimen In accordance with the recognised practloe 
epeclfied by the American Society for Testing Materials, the 
time temperature curve being followed, which curve cowera f'.v 
test* for building materials. 

Thermo-couples were pi seed at point a indicated at 
the lower right hand portion of blue print diagram*, figures 
1, 2 and 5, attached hereto, and tha temperature recorded by 
means of a Potentiometer at frequent intervale during tha 
teata. 






By reference to theae dlagrama 
that the American Society for Testing 
is shown in dotted lines. 



it will be observed 
♦•rlele ideal curve 



After placing each block, in turn, in the gaa furnace 
with the thermo-couples welded to the ateel et polnta 1 and 2 
and embedded In the concrete at point S and properly Insulated , 
the temperature waa gradually ralaed in the furnace and eon- 
trolled, ao that it matched, aa nearly ee possible, the ideal 
curve es shown In A. S. T. a. Specif lCbtlona C19-26T, which 
covers tentative specif lcatlona for fire teats of building 
construction and materials. It la mentioned that theee spec- 
ification, are similar to thee* which have been approved by 



PITTSBURGH TESTING LABORATORY 

PITTSBURGH. PENNA. 



OftDE* No Ch-S823 
CUtNT'l NO. 



Li«OK»'0»T NO 163521 

nwBNa 6774.3 



REPORT 



the American Standard* Association and which are followed gen- 
erally Is similar investigations. 

Attached photograph, Plata m k m , shows th© appearance 
of block* 1, 2 and 3 with insulated thermo-couple leads, prior 
to tasting. 



SUMMARY 0? RJB3ULT3 



C0MPRBS3IOK TBST3 



Results of compression teste lndloate a unit oomores- 
slon strength ranging from an average of 1158 pounds for a 1-6 
■ix to 2192 pounds for a 1-4 mix. the strength of mix Bo. 2 
averaging 1626 pounds or midway between that indioated for nixes 
1-4 and 1-8. 



The sane relationship also holds good for modulus of 
elasticity ralues, the values ranking in the same order as the 
ultimate compression strength of eaoh mix* 



Tests wore discontinued when steal temperature reached 
1000°f. ia view of results made by th* Bureau of Standards in 
load teats under heat of Gypsum protected columns. Results of 
these tests which appear in th* Bureau of Standard*, Journal of 
Research far June 1033 and indicate buckling when the temperature 
of the steel had reach** 600°?. to 1200°?. Prom these results ve 
considered that failure would haws occurred at a flange tempera- 
ture of 10OOOF. 




APPEARANCE OP BLOCKS BEFORE FIRE TEST. 



The following conclusions may he drawn from the results 
of these tests :- 



COMFRESSIOB STRgBOTH TB3T3 



A. An average strength of 2200 pounds per sq. in. 
is indicated for Pottaco Concrete when mixed 
in the proportion of 1 part of cement to 4 
parte of Pottaoo by volume and using 7 gallons 
of water per sack of cement . 

MODULUS OF ELASTICITY 



A. The modulus of elasticity In compression of 
Pottsoo when mixed in the proportion of 1 
part of cement to 4 parde of Pottseo by vol- 
ume and using 7 gallons of water per sack of 
cement, averages 1,250,000 pounds per eq. In. 
for working stresses up to 750 pound* per sq. 
la. This would give a value of *H* for en- 
gineering calculations of 1 to 24 where "»• la 
the ratio of modulus of elactielty of steel to 
concrete. 



A. The difference between the mixes in the fire 
teet are not a* marked as the variation in 
result* obtained in the compression strength 
testa. The elapsed time for the temperature 
to reach 1000°P. at the flange of block l*o. 1, 
representing a 1-8 mix by volume, was not very 
much leas than the time r-quired for the flange 
of the "H" beam to reach the same temperature 
in block Bo, 3, the latter representing a 1-4 

It would appear that if Pottaoo Concrete ia intended a* 
a fire -protecting material only, that a 1-8 mix by volume would 
anawer the purpose almost equally as well as the richer. 1-4 mix 
by volume. * 

On the other hand, however, we would recommend the Pottseo 
1-4 mix by volume in case the concrete is to be used for load bear- 

Respectfully submitted, 
PITTSHraOH TB3TIJ0 LABORATORY 




ACOUSTICAL 

The accompanying report on sound transmission made by the Riverbank Laboratories. 
Geneva, Illinois, probably the outstanding authority on acoustics of building materials, 
while shown in technical form, interprets itself to establish that POTTSCO has high 
acoustical properties and POTTSCO light-weight concrete deserves full consideration of 
its merit wherever acoustical qualities are needed. 




3lfaf4hu^^^us£^ 



^^n^V€t/ f %^^ 



I1TFORMATION 
REPORT 
#115 

Report on Sound Transmission Teats 

POTTSCO Block Partition 
for the 
H. H. Potts Company 

The partition was built in one of the openings of the 
Sound Chamber of the Riverbank Laboratories, of the 8x8x16" 
POTTSCO block, laid in lime and Portland cement mortar. The 
blocks were plastered on each side with a brown and finishing 
coat |« thick, of gypsum plaster. The tests were conducted 
TX° l nE t0 fc J e * tan dard Reverberation Method employed in this 
}nl ™ Py, . and ** sc F ibed in various published papers. The follow- 
JFtffi 1 tonni% 8 mp5 e oy 1 ed° garithmiC radttctl » f *^ "' •«* <*& 

Logarithmic 
Frequency, Reduction Fact or Sensation Unite 






c 2 

H 

4 

k 3 



A* 
A 4 

C 5 

I 

C 6 
F* 

C7 



128 


3.17 


144 


2.93 


180 


3.11 


205 


3.56 


256 


4.00 


288 


4.25 


384 


4.28 


456 


4.72 


512 


5.27 


610 


5.12 


723 


5.27 


912 


5.22 


1024 


5.60 


144S 


5.17 


2048 


5.37 


2896 


4.43 


4096 


6.20 



31.7 

29.3 

31.1 

35.6 

40.0 

42.5 

42.8 

47.2 

52.7 

51.2 

52.7 

52.2 

56.0 

51.7 

53.7 

44.3 
62.0 



3r square foot. lini ahed construction 



was 56 pounds per 



RIVERBANK LABORATORIES 



TESTIMONIALS 

The accompanying testimonials are representative of what all 
users of POTTSCO think about it 



J" BUILD"" 



\ lot** 1 U " 1\1. 



v.tfc y»» lPf 



1200 >*»• " .. .r.. •*•»* " -..ef 






, co**** 



,„, W*W ''*'• 



BUCK* 






JES-7S 



. \ t«*» "*" 



H-*""\t 



GCOfKJt 



L>THt*» c 



w «twoct** 



OO-C* 



"i-«$r~ 






W?8«"' 



ECONOMY OF STRUCTURAL LIGHT-WEIGHT CONCRETE 

The following quotation is an extract from report of 
Committee £06, American Concrete Institute, Frank A. Randall, 
outstanding structural engineer, Author-Chairman: 

"The additional price that profitably 
may be spent for a lighter weight concrete 
in order to reduce the cost of structural 
frame. For example, it would be worth while 
to pay 10 cents more per cu. ft, (2.70 a 
cubic yard) to secure a reduction from 150-lb. 
concrete to 130-lb. concrete in a concrete 
frame building thirty stories high and a 
reduction to 115-lb. or 100-lb. concrete in a 
five story building, depending on whether the 
floor was of solid slab or joist construction. 
The savings are more favorable in the steel 
frame building. 

We are hopeful that the data developed 
will prove of value." 









^tt«rvt.\on : 



i .> J J^X5 



f" ,Ttl ' rH — » »• Id U < f *" 






-MK-3 4CC. * 



•v. first »i 









••* *■ bi»» w c8ic «? 5S"** * * 

». w^ rr^ 



-£*# , 

ft J(( **»#%| 



•*D 



<***.*. ?j 



* "i, ,JJ" '*■ 



? IO» 



int o •,►, 









::s ;9E-I ZZ^S'--" BH 



- 
mlf» Jin II W 'T 'l 









r m i- XaMiWfc* ■* «■ 

_i »._^ .. . IC ■ ^ 



- 






»-. — - ■■ • • - •* 









■ _:»i •- BM 



v. rf 






" 



"fn^i^ecK 



i i I ■ 



ADVANTAGES OF LIGHT-WEIGHT AGGREGATE 

The following reproduction Is the result of an exhaustive 
investigation made by Mr. H. Herbert Hughes of Washington, D. C. 
regarding light-weight aggregates, which analysis speaks for 
itself insofar as POTTSCO light-weight aggregate is concerned. 



Scope ot tn lndustry 



*H.H-~* h ? h« 



D «c«ss^ sSs.iis Saws A? -^rss 

. sT REET 



Cnic 4 .„?' «Pfoces s » 1 ov ««onie tfc ° d ,ts W -!, i been ma 

and roofin. . ""« «s Use . **' masonry ,.„ P'faenf p„;. re,a, oed on 

P^Pose, 8 ' but "* e 001 ^ n Poured co r ^a. Tes^"^ ia ««.» 

- --^^C- /5s^^SpS?ipSt-^ 

• olu,n °«tpuT7 peoed '» ft.^ 8 P 61- *»y * ffia «m Um h08e P'an (s 

o^ %>T toos 4> *«; . A c ond ^tf p ; c,,y °< £ 



I 



COMPARATIVE COST OF 



ICO BUILDING UNITS IN THE WALL WITH 
" TILE IN THE WALL 



H^ 



lmmrr*i+ Prodaru 



October. I93D 



What Is a Fair Market Price 
for Light- Weight Units? 

A Canfal Aa-Jr-ia of All Factor* Affecting «•»* Sale* Flgmr* 
By H. H. POTTS 



r build 

hestee 

Qianu- 
'ailabJe. 
be the 



One 
won. 

'don 

ade, 
1 till 
ipse 




N .'»rr prtfrrrt'iul buildinc code feilrie 
tiara cam in e particular locality 

Ordjnarr rU, lik lor backup ha» en- 
iared the edranta«t ol being the fin! 



>f tool indoacry and they 



COST OF LABOI AICD UOKTAH FO THOUSAND 

— ace. labor, hob la- m. coacrelc inula, per U 

_ -> demonitrate the Mum bbor. 5naal2.ii! day tile, pr- M 

narked «™«n. dan caa be cflectH by Mortar, eoacntr un,< 

aJb«nut.r« a larger hollo, an* (or the Morter. cfay liW (6 ea. It i 

aaaalfer a»M bncfc .nit TW ..end ol the S^?5 ! SS" £~ ""J* """"^ »" «* S" °* ■*- " 



Number of SaBali-.iv a 



ft per lQOaa.lt.) per M 

r 100 ib, lt( par M_ 

-equired per aa. It ol wall 

!• required per m It ol waTL 






* for b 



r ed>«nt ol light -areifht 
in Ihu trend 



»d and today tfcay If*?:" < "^JTaS CV 

. a. ih. i— t.™ ._.. Mortar, L I anita fi IJOM. 

e in the backup unit Uorai. U omu S 0095 

held Becauar clay lik led the building in- ' " """ * 

ird the uat ol hollow anna lor Total labor and 

i material Mill hold* the major Sarin, 
i thai claa* ol nD eon- 



corr or L*aoi awd moktai hi to rr-t m wall 

_ . Coaeme ul« da* tfla 

— ta»<»#7tla. . -J eta. 

11.0 eta. 



An attempt was made In 
the accompanying article to 
set up on the basis of 1930 
prices, a ready and quick 
comparison of the cost of 
P0TTSC0 walls with hollow 
tile walls. 

The theory of the 
calculations Is adjustable 
to the basis of prevailing 
prices governing both prod- 
ucts. 

Because of the design 
and size of POTTS CO building 
units displacing smaller 
units of other products; 
the ECONOMY" of POTTSCO walls 
Is reflected In labor and 
mortar especially. 




In addition to actual 
lower wall costs, the added 
qualities of POTTSCO walls 
in the form of insulation, 
acoustics, nailing, direct 
plaster base, etc. are de- 
cidedly apparent. 

Data on these features 
appear elsewhere in this 
booklet. 



ro«icarri inem 
Art, 

™-r, >.. iaM, ra. |/ M rafc »,| n ». r Ciiir«e,» n d M C,. Wbaab. Keller, mpenar |Jj 

General om t m l maaaai 1 A 
•« direct comae, a* .he owner, ol the MrM*. labor «!!„, 4llrb-M1 ^ w . Safcr. capraa, lrl , 




at loat.iy the added BBB\ «ith the mull thai 
anWaai eaeee art grant I v 
ThroaShom the central oate^. driiverad 



anew lor SataU-n. clar nle Una tie it •**"*• *• *• aornaal Moaaw ol ordaamr, . . — °— "~»to*^ad ctanaanad ea- 

mm, _eo--« lor baetop, r^ bet^-a ^"1^'^^'' ** "—- "* — ^^Jf?** ,"*" ^v™ ™" - '* 

W-itWa-F m n aajnl aVIereace to tf» "* »»«». «*arta-, oeerbaad coal m^> dat £JZ.TJ^T ** —*t ~J 

»" «abfe da^a rha. the ^-nbtH —- » - —rh at J0» Foe exana-le. ^.^ — ** JJ ' mww * * tata -» «• 




WKOO OORf senrpts to assist manufacturers, dealers, 

and others In building ml rain tal ring the prestige of POTTSCO at all times, by an 
advertising campaign through representative and prooer mediums. 

Below 1b reproduced specimens of advertisements taken at random 
which have appeared from time to 1 1 



POTTSCO 

IS 
CHEMICALLY IMRT 

POTTSCO onuuii no toiuble *ulphur and 
le»» tulphuric anhydride than Portland cement 
itactl In (act a chrmiu] analrei* \A POTTSCO 
parallel* a aimilar enalrai* of Portland cement 

A report of MM on POTTSCO bg the R. W 
Hunt Company prove* that it contain* no in 
gradient* «rhlch c-n in any way injur* atecl or 
other tu.il.ri material* A paragraph in the 
Hunt report road* a* follow* 

The low percentage of water tolubl*. a* well 
a* the natural reaction indicate* the' 
plea aubmittad would not cauaa cotroaion whan 
uaed a* ar. *tc ,r t'" 'or concrete in contact 
r,g I'm 

The report elate* 

I A polUhad ue«i ahowad no notice 
■ bU deterioration on being placed In boil- 
ing wate.- containing portion* of pulvaricod 
POTTSCO 

f'aralltU Portland Oment 




POTTSCO . being uaed for mon< 
we .girt mum an mm o* the large** and 
MM important building* for the U S Oovam- 



r^uall. wood for ».*..•*** wrm. 



UMi .1 Hard and I r*.4«ll,»e 
H*S> an C ■■■rwalvr | 



*eW ««- w. rwleW r~. .f ta» gww**, hear*.. 



I N*wth U ftatt* St. < l... «.„ 



POTTSCO 



LIGHT \l I M,HT AGGREGATE 

Architects ana 0TT8CO fulfills every requirement as 

proven prod, ■ . Jg £J actual fieS 

has given cot-, ' " 

important buildn . ,-ral f 

the largest Post Office 

States POTTS r 

light 



light weight wit, > ' — s^ 

strength and load bearing rah* (POTTSCO) 

Contractor, like POTTSCO !*..,« Ur^^rTTiSiaU 

of iu tan workibil.iv .,.,. « ° ° JTTT*™ 



of iu ea*y workability. ffta , r , ylc 
Ubor saving, low hrit co»t 43J , 
at all temperature*. 



»*-. H«,rl„; 
r^prool.ng. fWk-u, 



■ ligli lti-ulMlirtt Value 

' • ■ IRlll 

' r.ualiral Valae 
Smooth Vrorkuhilil, 

itj uf all Tem prra lures 

« iu WLvirui 

Chicago or Pitts- 
Ik,. >.,i .,. bur^h at l uvv fr e ;gh. r A tes. in quantitiea 
des.rcd sapping 
la can htrnt . 



TBI- FO, ISro (HHHH(MIOV 



Ah V.nb L* *.«n. 



POTTSCO 

A Proven Product 

at a 

New Low Cost 

ArCni '' ittCTB 

*/« specify™,; -rid using POTTSCO 
today because .t Ig a tested product 
and ha. g.ven complete satisfaction on 
numerous important bu 

Everyqual.ty you want m , lightweight 
aggregate is found in POTTSCO 

*'" L ' *.*....,. 

Um,U "°" wort™ 

Ii ha. tested inwiUtion and acoust.cal 
value uniformity ., .,, temperature, 
•nd no segregation m miaing 



I - J * 



T., a «^-P»W. 

POTTSCO fuJfUU ever* r-« 



— , iu „ 



POTTSCO 

ShaiiR Hiprh Efficiency 
AT LOW COST 

i 




POTTSCO 

Used in the New 

Chicago Post Office 




POTTSCO u*ed h the large* po* otfc-r .n thr 

nrm o — .,■...,.. i 

rompreeane Hrrngth, great inflating Bl 
tical »,| u . High .n msublion and low In ro«f 
Good for back-up block and p.r..,,„ ,,|, ., mr || 
a* for n. 



(PC 

«0 



POTTSCO) 



Flow-fill 
Roof SUba 

Nailing Coorrrir 
rirr proofing 

l-und-bearinp- Building I nil* 
Part. lion Tilr 
Hoofing, lilr 

I Is-** .. 

I"- freight rale* in ajuanuUr* frum .*rlu«d up 



The PolIt.ro Corporation 

°"' V «rtn U ".all, Su^et 



PACE FOUR 



THE KALAMAZOO GAZETTE 



JIIMIIIIMIIIIHIIlnlllllllllllllllllllllllllllllllllllllllllllllllllllllMllllllllllllllliilllllllllllllllllllllllllllllMIII lllllllllllllllllllllllll 



Your Neighborhood Concet 



Owner Management Personal Contact, Prompt Courteous Service— Low 




lilllltl M lltllllllllllllf Illlll M If II II M 1 1 1 1 tlltf III II i;il|||||||||||||||MI|tll||||llllllinilll|IIIIIIIIIMII 



SOUTH SIDE ATLD SOUTHWEST SI 




PUT 1 MARKET 





All Qualities of Wood Ob- 
tained in Substantial 
Substance. 



A Building block, made by a 
tpecial process to remove approxi- 
mately HO per cent of it* weight 
but having sufficient hardness to 
produce, adequate compression 
Btiangih Rnd comparatively low 
absorption qualities, Is being made 
unci has been placed on the mar- 
t»v the Kalumazoo Cement 
Products Company located on Al- 
cott and Portage streets. The new 
product is known as Pottsco. 

In special tests the blocks have 
been found suitable for nailing, 
pawing and boring. Its tenacity 
quality for retaining nails have 
■proved bv tests to be superior to 
that of wood. In this test 8T> nails 
were driven into a 2x4 pino tim- 
ber and required an avererage pull 
of 140 pounds for extraction, 
whereas the same number of nails 
driven into the Pottsco blocks re- 
quired an average pull of 145 
pounds, according to Lester R. 
Hya". manager of the company. 

Mr. Ryan also says that these 
Mock units may be easily and 
quickly sawed on any angle with 



*M-TT 



V 



L. A. Schoolmaster 

Sanitary Plum bins and 

Heating 

Experienced Workmen 

1108 S. Westnedjce Ave. 

Dial 7831 



any type of saw with no disastrous 
results to the saw; and that boles 
may be bored with ordinary tools 
and even lag screws applied with 
no ill effect to the brick. 

The tiro resisting qualities of the 
product is high, as has been de- 
termined by the Robert W. Hunt, 
Engineers, whose reports, after a 
lei>t made, states that "the area 
In immediate contact with the 
flame came to a bright chrry red 
which is generally considered* 1A- 
dictatlve of a temperature of about 
1,500 degrees Fahrenheit. The 
other face of the block was then 
not too hot to be touched by the 
hand. While under these condi- 
tions the blocks were deluged with 
cold water; No cracking or scal- 
ing off of the blocks was apparent 
from the heat or from the cool- 
ing of the water." 

The sound-deadening qualities of 
the product, determined by a test 
made by the Riverbank Laborator- 
ies of Geneva, Illinois, reveals an 
avcrago reduction over the entire 
range of tones of 45.7 units, while 
a reduction of only ttO sensation 
units would be necessary to reduce 
a sound of ordinary conversational 
loudness to inaudibility. 

In a freezing and thawing tests 
made by the University of Wiscon- 
sin from January, 1929 to March 
2t>, 19 29 showed that though there 
was some surface deterioration to 
a depth of only 1-ln of an inch 
or lo*s, this did not show up until 
about 90 reversals had been made. 

Other tests made reveal the av- 
erage compression strength of the 
units to approximate between 9 00 
and 1,200 pounds per square inch. 

Though the product is new to 
lyalamazoo it has been manufac- 
tured by plants in Wisconsin for 
some time. Slag is used in its 
manufacture and a chemical an- 
alysis shows the block to contain 
lime, silica, alumina, manganese, 
and sulphur. 

. , * 

All lend compounds are poison- 
ous. 




: < 1 1 1 ! 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 M i r 1 1 1 1 





FOR H1SPR0DUCT 

DeBruin's Busin ess Six 
Years Old; Has Special 
Game Fish Permit. 



R. P .WARNER & SON 



rr 

Agents for Century Electric 
Motors. 1-30 h.p. to 250 h.p. 



BILLINOS-CHAPIN 

4-Hour Enamels 
4- Hour Varnishe 
Sand Pails and Shovels If 
Scooters, $3 M up 




So great has been the demand 
live bait by fishermen this 
Jring that Jake DeBririn, bait 

frter at 1501 South Westncdge 

•eet, is finding it difficult to keep 
11 with the demand in spite of the 
mjt that he leases two ponds for 
live bait and covers a radius of 
40 miles for bait, lie is at present 
considering getting gold fish to 
keep up with this demand. 

Mr. DeBruin has one of the nu 
modern, live bait establishments 
Michigan. On his property 
Wcstnedge street he has 
structed a roofed-in minnow 
the base of which is bol 
water level of Ax tell c re- 
runs through the propr 
creek furnishes a coru-tn 
tlon of water through 
tanks. 

ALL SI// 

The minnows s»i p 
types and run n 
down in >:'/ 
leased In .. 
County I - - 

mand for 
force. I In 
to^sct h 



nets as each net pulls 

to three hundred mln 

BARS ST. JOE 

Further evidence o 
manship is the sign 
placed in his minnow 
roads: "Xoticc: No 
r<> Residents of t*t 
This county docs • 
ing with minnow 
UcBruin iccogni'/ 
that county, In 
well acquainted 
them bait. 

All types of 
by him incl 
crickets, an 
though pat 
sively usee" 
fishermen 
Mr. DeF 
evidencr 
lures u 
the ii 
large 



P r 



o. 



From 



The Kalamazoo Gazette 
Monday, July 8, 1929. 



■ Ai>LKY F. FMKMAJV 
DONALD U. MWKKT 
OIOBOI M. ALAU1M HT 
■ABAYA WBIDMAN 

MAM la JAUH 



FVueemam and Sweet 

vTKNT ATTOKMKYH 
TK> Sot TH LaMaIXK HTHKKT 
MTATK «9TO 
I B LL1NOI8 



DONALD m. <WKIT 
MA NO |_ JAMB 



CLTVILAN 

«AN 



*»• WRIDMAN 



MILWAl'KK»- 
rUBKMAN am ALBI 






August 7, 1931. 



Harry H. Potts, Esqulr- 
201 Horth Aells Strei • 
Chicago, Illinois. 

Dear Mr. iotts: 

It is a pleasure to notify you of 
issuing of United States 
'66 on August , based on 
r ent ol ht-wei ^llt eSploy- 
mulated slag a t r e em ^ io y- 

•* ^ 1 'we'toVtr We f 1 : 3 ' -° ach - 

„ere tne or -"Ion that you 

•eight concrete made from an-. S^i- 

gate. It Is a Dlf»; JS ur« ™* ' sla e a €gre- 

He 

-elusion 

nd protect 
Uf «n aggre- 

•"• ; :-.:::,. .■;.;, .• , ■.;■•-'•: :^J"52 

the Straut patent to K^V^T^ ^ 

Youi *s very t. 















Chicago, mmntfl 
New U. S. Post Office 
POTTSCO floor-fill used throughout 



I 



^Br 




;5m 



■■■»■: 



i 







mi^|^|fe brick used 
Foundry - PC1 for all walls. 




re ^en c L e ° ba<*-up 



"• ^ottnan 




ar- 



il li 



PUTTSCO back-up units 
used In 
Horth Kuskc^rm.Mi^ School> 






{fift- fell 




gRTITBCc back-up 
' nita 




Con units. 




Duplex Residence of B. H. Schoorthoven 
ready for application Fortlpnd 
Cement Stucco direct on PCTTSCO 
back-up units — 





*g*tr~ 



^■»sasas*fe8. u 



"■""ion units 










fpfr. 







s*?.-* 









i in pi ci 



e«e partition 



^ 



I 




Milwaukee U i .-or;: 1p 

(leal 
, I - 



****%»* 





:■- - 







UI:& used 




Davenport, Iowa. 
and partition unite used 
throughout this xnr»dem service e' 









A magnified granule of 
POTTSCO light-weight 
Aggregate 



Milwaukee, Wis. 
Asphalt composition siding nailed directly 
to POTTSCO back-up blocks— 





A typical standard 

4" x 8" x 16" POTTSCO building 

unit- 




Specimen section showing POTTSCO 
light-weight concrete for fire-proofing 
steel columns, saving dead weight 
and increasing fire protection — 



i 



*